Beef Barley Soup... Beef Barley Soup Ingredients 2 cups water 1/4 cup uncooked pearl barley 1 boneless beef sirloin steak or top round steak (about 1 pound), cut into 1-inch cubes 6 ounces mushrooms, sliced (about 2 cups) 1 clove garlic, minced 4 cups Swanson® Beef Broth (Regular or 50% Less Sodium) 1/4 teaspoon